Importance Bumped up automatically based on days overdue

I've seen the older topics and formula for importance. Just wanted to add a +1 to include heavier weight based on due date. For example a >7 day over due tasks would carry more weight and >30 even more. Not necessarily those number of days but you get my drift. I know that tasks can be starred but some of us need something automatically moved into our faces :) I tend to let things slip through the cracks. Had an old palm app that did something like that and I miss the feature. Looked for something similar a while back but couldnt find it.